While you definitely want to get the best deal possible on your grinder, don’t make the mistake of buying poor quality. Cheaply made grinders are not worth it. Stay away from plastic, wooden and imitation metal grinders as they are sure to break. Also, most cheaply made grinders either don’t have kief catchers or have very poor kief screens. Having a good screen is well worth paying the extra $10 or for.
The best place to get a cheap price on a quality grinder is most likely going to be online. Generally you can find deals as much as 50% off. Select one of the quality brands below and look for a good deal on a 4 or 5 piece grinder. These grinders usually retail at $75-100, but you can often find them as low as $20-40 online, which is an incredible deal.